13137906 has 32 divisors (see below), whose sum is σ = 28038528. Its totient is φ = 4089600.

The previous prime is 13137881. The next prime is 13137907. The reversal of 13137906 is 60973131.

It is not an unprimeable number, because it can be changed into a prime (13137907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14976 + ... + 15828.

It is an arithmetic number, because the mean of its divisors is an integer number (876204).

Almost surely, 2^13137906 is an apocalyptic number.

13137906 is an abundant number, since it is smaller than the sum of its proper divisors (14900622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13137906 is a wasteful number, since it uses less digits than its factorization.

13137906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 13137906 is about 3624.6249461151. The cubic root of 13137906 is about 235.9619899524.

The spelling of 13137906 in words is "thirteen million, one hundred thirty-seven thousand, nine hundred six".